Arbitrary amplitude dust ion acoustic solitary waves in dense Fermi plasmas

Journal Article · Tue Jan 15 04:00:00 EST 2008 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2830649· OSTI ID:21069992

Mahmood, S ^[1]

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1. Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore Islamabad (Pakistan)

The arbitrary amplitude dust ion acoustic solitary waves are investigated in unmagnetized quantum plasmas. The quantum hydrodynamic model is employed with the Sagdeev potential approach to describe the nonlinear dust ion acoustic waves in dense Fermi plasmas. It is found that electron density dip structures are formed in the subsonic as well as in the supersonic regions in such dense dusty plasmas. The range of wave Mach number is increased with the increase in the static dust density in quantum plasmas. Both the wave amplitude and width of the nonlinear structure are affected by static dust density. The quantum parameter effects only the width of the nonlinear structure. The amplitude of dust ion acoustic solitary wave is reduced with the increase in the wave Mach number.

• OSTI ID: 21069992
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 1 Vol. 15; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
DUSTS
ELECTRON DENSITY
HYDRODYNAMICS
ION ACOUSTIC WAVES
IONS
MACH NUMBER
NONLINEAR PROBLEMS
PLASMA DENSITY
POTENTIALS
QUANTUM PLASMA
SOLITONS